SunRace CS-MX3 Wide Range 10 Speed Cassette
SunRace 10-speed cassettes are a great option for riders who want to get the most out of their 10-speed drivetrains.
The CS-MX3 is the perfect upgrade for riders who want to reap the benefits of wide range cassettes without upgrading to a completely new drivetrain. The CS-MX3 offers a wider range than any stock SRAM or Shimano 10-speed cassette. The CS-MX3 is available in two different ranges: 11-42T and 11-40T.
The largest cog is 7075 Aluminium to keep weight down while the remaining cogs are constructed from durable steel. The largest 6 cogs are also split onto two aluminium spiders for further weight savings and to help prevent freehub wear. This cassette will fit on any splined freehub body and a few simple derailleur adjustments will have you enjoying the benefits of a wide range cassette. Please note, due to the increase in range, a longer chain is likely required.
- Compatible with all splined freehub bodies. Will not work with SRAM XD drivers.
- Largest cog is 7075 aluminium and the remaining cogs are steel.
- 11-42 (387g), 11-40 (378).
- 11-42T: 11-13-15-18-21-24-28-32-36-42 .
- 11-40T: 11-13-15-18-21-24-28-32-36-40 .
Please note: SRAM derailleurs should work without any issues. Shimano derailleurs will require a longer B-Tension bolt. We stock Wolf Tooth's 25mm B screw which is perfect for this cassette.
A longer chain will also be needed!
To purchase Wolf Tooth's 25mm B screw, Click here.
Ratings & Reviews
Does what is says
by Hamish L. -
Seems well constructed, fits well, looks great. I'm running the 42t version with a sram x9 derailleur and its definitely on the limit. With a lot of fiddling it shifts ok now, but I would probably recommend the 40t unless you have a long-cage derailleur. As-is it shifts a little bit slower than my old 11-36t cassette, but that's what you'd expect with larger jumps between cogs. Of course the transitions are not as smooth as smaller 10 speed cassettes but for me it's worth it for easier climbing.
by Duncan Markham -
Looks very like a XO 9 spd cassette construction before SRAM went to the machined cassettes. Its pretty heavy in comparison to the newer design, but fits nicely and shifts well even under load. Very happy to gain the 42T and losing the 10T isn't too much of a drama when running with a 34T. Great value.
I had been using a
by Damo -
I had been using a Wolftooth 42t cog with the 16t cog on a Sram cassette which worked well, but the gear ratios on this are much better with smaller jumps between gears at the high end. Crisp shifting with a Sram GX RD - great value for money for a proper wide range cassette.
Sunrace 11-40 10sp cassette.
by PETER R. -
Great upgrade over old 10sp xt 11-36 cassette. That extra gear I always needed for the 1x10 uphill slog. It changes up and down smoothly with an slx med derailler and xt 32 front ring. Great value and saved me going to 11speed. Looks rad too!
by Patrick J. -
The cassette has been alright, however the shifting between cogs is disgusting even with the gears being indexed properly